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Recurvaster spiniger
Taxonomy
Recurvaster spiniger was named by Jagt (2000). It is not extant. Its type specimen is Holotype NHMM K 769, Paratypes MB 284-1/a-d, 867-7/a-b.
Synonymy list
| Year | Name and author |
|---|---|
| 2000 | Recurvaster spiniger Jagt pp. 412-413 figs. pl. 12, fig. 1-4, 7-12, 16 |
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If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.
†Recurvaster spiniger Jagt 2000
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| J. W. M. Jagt 2000 | Medium- to large sized species, based on isolated marginals only, with proximal superomarginals having sloping lateral profile, gently curved outer face with two large spine bases, one on an aboral tumidity, directed obliquely upwards, the other near the intermarginal margin, and directed outwards. Ornament consisting of close-set granule-pits on well-demarcated central area. Distal superomarginals with almost flatlateral/aboral surfaces, lacking spines, and with granule pits either covering entire central area, or leaving out portion of it. Proximal and distal inferomarginals short, square or wedge-shaped, with a single large crater-shaped spine pit (directed outwards) placed centrally or slightly towards inner margin. |